61844816 has 20 divisors (see below), whose sum is σ = 130717824. Its totient is φ = 28111200.

The previous prime is 61844807. The next prime is 61844831.

61844816 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 61844816.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175520 + ... + 175871.

Almost surely, 2^61844816 is an apocalyptic number.

It is an amenable number.

61844816 is an abundant number, since it is smaller than the sum of its proper divisors (68873008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61844816 is a wasteful number, since it uses less digits than its factorization.

61844816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351410 (or 351404 counting only the distinct ones).

The product of its digits is 36864, while the sum is 38.

The square root of 61844816 is about 7864.1475062463. The cubic root of 61844816 is about 395.4586692436.

The spelling of 61844816 in words is "sixty-one million, eight hundred forty-four thousand, eight hundred sixteen".